Padlock.



F. D. LUCKEY.

PADLOCK.

APPLICATION FILED AUG.9. 191B.

1,360,983, Patented Apr. 15,1919.

roimusr D. LUCKEY, or LOGAN, UTAH.

PADLOCK.

' Specification of Letters Patent.v Patllted Api'. 15, 1919.

Application filed August 9. 19.18. Serial No. 249,074.

To all whom t may concern:

Be it known that I, Forensi: D. LUCKEY, a citizen of the United States, and resident of Logan, in the county of Cache and State of Utah, have invented certain new andY useful Improvements in Padlocks, of which the fol-` lowing is a specification.'

This invention relates to the class oflocks and latches,and more particularly yto a no-vel and improved padlock. p

The invention has for its primary object the provision of an improved padlock having a novel key operated mechanism for releasing the shackle, the device being so constructed as to prevent it from being operated by an instrument or piece of wire, and in fact, anything but with the proper key.

A further object of the invention is to provide an improved lock which is simple in construction, economical to produce, strong and durable, and efficient in use..

lVith the above and other objects in view as will appear as the description proceeds, the invention comprises the various novel features of construction and arrangement of parts which will be more fully described herein and set fort-h with particularity in the claims appended hereto.

Reference is had to the accompanying drawings forming a part of this application, in which like reference characters indicate the corresponding parts throughout the several views, in which Figure 1 is a vertical sectional view' of a padlock constructed in accordance with my invention, the shackle being shown in a closed or locked positionl in connection with the parts associated therewith,

Fig. 2 is an edge elevation Vof the im-y proved padlock,

F ig. 3 is a vertical sectional view, but showing the shackle released, with the parts in an unlocked position,

Fig. 4 is a detail view of the key employed in the device,

Fig. 5 is `a cross-sectional view. taken onv the line 5-5 of Fig. 1, and

Fig. 6 is a cross sectional view taken on the line 6-6 o Fig. l.

Referring to the drawings in detail, my improved padlock is shown as comprising a casing 10 of rectangular formation, in its preferred embodiment, and comprising sections 11 and 12 itted together and secured at suitable points by rivets or dowel pins 13.

The casing sections are interiorly hollowed out suilicientlyto accommodate the working parts, and as shown, a slot 14 is provided in onecorner of the casing between theopposed sections, to -pivotally receive one end of a curved shackle 15, the pivot being designated 16 and the shackle being extended beyond the pivot and notched to receive one end of the usual form of opening spring 17. acting betweenthe adjacent wall of the casing and the adjacent end of the shackle, as shown.

The free end of the shackle is beveled, as shofwn at 18, and provided with a transverse keeper or slot 19 running from its inner to itsouter edge, and said shackle enters a slot 20 also formed between adjacent sections of the casing at the edge oppositeto the edge to which the shackle is pivoted and within the walls thereof.

Coperating with the shackle in order to hold the same in a closed or locked position, is a catch or bolt 21 pivoted at its lower end, as shown at 22, and normally held into engagement at its upper end with the slot 19 through the medium of a tapered right angular engaging or nose portion 23, through the medium of a contractile spring 24 anchored to the casing and connected intermediately to the pivoted bolt or catch.

In order to withdraw the catch for per-` mitting the shackle to spring open, thereby opening the padlock to release objects held thereby, there is provided a sliding block 25 having its upwardly extending portion 26 pivoted to the catch 21 above the spring 24 and a depending portion 27 'serving as a supporting and guiding means within the casing. This block extends horizontally and is formed at its free end with a circular socket 28 receiving therein for rotation a barrel 29, which latter projects through the edge of the casing corresponding to that edge adjacentrto which the shackle is pivoted, instead of to the opposite edge or at the bottom of the casing, as is usual, and is pro v vided with a tortuous grooved slot 30 axially l lock.

and tengaging the casing or body of lthe The inner end of the barrelibis spracednfrom the end Wall of the socket 28 and through Vsaid end Wall a supplementary socket portion 33 of reduced diameter is formed, .there being anundercutprovided at dlametrlcal-ly opposite sides as shown at 34, communicating with the key receiving slot Vin the lin the respectiveslots() and', it-being understood that the" formation of the grooves can be varied so as to give a large number of combinations. The keyV shank 38 t is formed with oppositely extend-ing bit llanges 89, and thus it will be seen that by inserting the key in the slot 30.0fthe barrel and caus- Y ing the same to enter Vthe slot 35 in the block 25, the flanges'39 may be causedto passbeneath the langesf and intothe segmental recesses 34C, by turningthe key to the right and then by pulling outward on the key, the block Will be-correspondingly moved to disengage the portion 23 of the catch or bolt 21*` from the slotv 19 of the shackle. The spring 17 Will then immediately act to open the shackle, While in order to engage vthe shackle, it is `simply swung against the action of the spring 17 into the slot 20 andthe spring 24 Will cause lthe engaging end por- A tion or nose 23 to enter the slot 19, afterthe beveled portion 18 has moved the catch or bolt 21 inwardly by engagement with the rounded or beveled nose portion thereof, and as the springs are -made relatively strong,

v the lock Will-be securely heldagainstspurious opening.'I From the ,foregoing description ytaken -1n connection With the accompanying dravv-y ings, it, is thoughtthat a clear .andcomprehensive understanding of -the construction, operation, and advantages of my invention may be had, and While'I haveshovvn and-'described l'the` 'device as, 4embodying av specific structure, I desire that it be understood that such changes may be-made-in said structure' Y -I Iaivting thuslescribed my invention, whatl I claim`is neviT and desire to secure by LettersiPatent, is:

l. In a padlock, a casing, a shackle pivoted at onecorner of the casing and having an opening in its free end also engageable in Ythe casing, ".pivoted catchcengageable with the opening ofthe shackle to secure the latterin locked position, meansto nor-fk mally .hold said oatchjinsaid position, a block slidable -iir-thev casing Vand connected to-v thev catch, a-barrel -turnable in the casingV and providediwith -a slot therethrough,

means to Vlimit the turning of the barrel,

meansto prevent displacementfthereof longitudinally, said .blockv being provided With a-'sockethaving-a key `receiving slot corre-- sponding to theY slot inthe/barrel', and undercutrecesses communicatingwith theslot and providingfflanges adapted to receivei a 'key having opposite -1 extensions 'jtherebeneath Wherebyoutwardpull may beeXerted upon the blockffor releasing vzhe-catch.l

2.In a padlock, 7a casing,1'ashackle-pivf oted at one cornerjoithe casingandha'ving an opening 'in itscf-reegend also engageable in the casing, Ya pivoted -catch engageable With-the opening of the shackle to secure the latter in lockedfposition,'means to normally hold said'catch insaid position, ablockslidable inthe casing and connecte'dto the catch,

abarrel turnable in the casing and provided with a slot -therethrouglnmeans to limit the turning of thev'barreknieansto prevent displacement` thereof longitudinally, said block eing provided Witha socket having av-key receiving sloty corresponding tothe slot in the barrel, and `opposite undercut recesses providing-flanges adapt-edtoreceive a keyvhav-A ing oppositeextensions therebeneath When said key` isinserted in theslot-and turned Wherebyoutward--pull maybe exerted upon the block for releasing the catch, said V-slots being ofgsegmentalfformation Wherebysaid` flanges arefengagedbyturningthekey in one direction only, theo'ppose d sidesof the slots being-solidtoprevent-engagement ofthe ykey beneath the flanges in the op ositel direction.

In testimony v'vfhereot` I my signature hereto. Y

froeiansrninucnnv.

Copies of 'this patent may be obtainedffor ve cents each,:by:,addrevssingiihefffqniminercbfiilts,

Washingtomb. C. I 

